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Periodic table's seventh row finally filled as four new elements are added

Periodic table's seventh row finally filled as four new elements are added published by The 1st Amender
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Posted on 2016-01-05Writer Description: Changing the way people think about news.
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Four new elements have been added to the periodic table, finally completing the table’s seventh row and rendering science textbooks around the world instantly out of date.

The elements, discovered by scientists in Japan, Russia and America, are the first to be added to the table since 2011, when elements 114 and 116 were added.

The four were verified on 30 December by the US-based International Union of Pure and Applied Chemistry, the global organisation that governs chemical nomenclature, terminology and measurement.

IUPAC announced that a Russian-American team of scientists at the Joint Institute for Nuclear Research in Dubna and Lawrence Livermore National Laboratory in California had produced sufficient evidence to claim the discovery of elements 115, 117 and 118.

The body awarded credit for the discovery of element 113, which had also been claimed by the Russians and Americans, to a team of scientists from the Riken institute inJapan.

Kosuke Morita, who was leading the research at Riken, said his team now planned to “look to the unchartered territory of element 119 and beyond.”

Ryoji Noyori, former Riken president and Nobel laureate in chemistry said: “To scientists, this is of greater value than an Olympic gold medal”.

The elements, which currently bear placeholder names, will be officially named by the teams that discovered them in the coming months. Element 113 will be the first element to be named in Asia.

“The chemistry community is eager to see its most cherished table finally being completed down to the seventh row,” said Professor Jan Reedijk, president of the Inorganic Chemistry Division of IUPAC.

“IUPAC has now initiated the process of formalising names and symbols for these elements temporarily named as ununtrium, (Uut or element 113), ununpentium (Uup, element 115), ununseptium (Uus, element 117), and ununoctium (Uuo, element 118).”

New elements can be named after a mythological concept, a mineral, a place or country, a property or a scientist.

The four new elements, all of which are synthetic, were discovered by slamming lighter ­nuclei into each other and tracking the following decay of the radioactive superheavy elements.

Like other superheavy elements that populate the end of the periodic table, they only exist for fractions of a second before decaying into other elements.

>>This article was amended on 4 January 2016. The reference to the new elements being “manmade” was changed to “synthetic” to follow Guardian style guidance on the use of gender-neutral terms.